Home / 28,802.38-43,169.62-12,988.89

Finding the Fourth Proportional to 28,802.38, 43,169.62 and 12,988.89

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Solution

The fourth proportional to 28,802.38, 43,169.62 and 12,988.89 is: 19,468.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,802.38 : 43,169.62 = 12,988.89 : x
  2. Step 2: Convert to fraction form
    28,802.38/43,169.62 = 12,988.89/x
  3. Step 3: Cross multiply
    28,802.38x = 43,169.62 × 12,988.89
  4. Step 4: Simplify right side
    28,802.38x = 560,725,445.52
  5. Step 5: Solve for x
    x = 560,725,445.52/28,802.38
  6. Step 6: Final answer
    x = 19,468.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.